Giuos em với ạ nhờ 5**

21. Because Lan was sick, he didn't go to school yesterday.

Because + clause, clause: bởi vì 

22. You'd better not eat too much meat. 

had better + not + V1: không nên làm gì 

24. How old is your daughter? 

How old + be + S? hỏi tuổi 

26. Long swims badly. 

S + be + (a/an) + ADJ + N 

= S + V + ADV

27. My brother is a slow cyclist. 

29.  Mrs Chi types quickly. 

30. Thoa is a smooth singer.

31. Miss Lan runs fast. 

32. Mr Hung drivers safely. 

33. Minh's sister is a marvelous dancer. 

34. Mrs Oanh is a good cook.